Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue from contracts with customer

The Company disaggregates revenue from contracts with customers into product and geographical regions as summarized below.

	Three months ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
SOLIRIS
United States	$	553.3	$	496.3	$	1,109.5	$	960.0
Europe	247.9		280.2		511.4		544.7
Asia Pacific	82.4		110.3		169.5		211.2
Rest of World	91.9		94.0		208.0		226.9
Total	$	975.5	$	980.8	$	1,998.4	$	1,942.8
ULTOMIRIS
United States	$	158.1	$	54.2	$	289.6	$	78.8
Europe	32.0		—		65.8		—
Asia Pacific	59.6		—		116.7		—
Rest of World	1.4		—		1.8		—
Total	$	251.1	$	54.2	$	473.9	$	78.8
STRENSIQ
United States	$	140.7	$	106.2	$	268.8	$	205.7
Europe	18.3		19.5		42.3		37.0
Asia Pacific	15.0		12.1		28.6		22.0
Rest of World	10.3		3.5		16.8		6.7
Total	$	184.3	$	141.3	$	356.5	$	271.4
KANUMA
United States	$	15.4	$	15.3	$	31.8	$	29.1
Europe	8.4		6.8		15.9		13.1
Asia Pacific	0.9		1.3		1.8		2.1
Rest of World	8.9		2.8		10.8		5.4
Total	$	33.6	$	26.2	$	60.3	$	49.7
Total Net Product Sales	$	1,444.5	$	1,202.5	$	2,889.1	$	2,342.7

Summary of receivables and contract liabilities from contracts

	June 30, 2020		December 31, 2019
Receivables, which are included in "Trade accounts receivable, net"	$	1,372.2	$	1,243.2
Contract liabilities, which are included in "Other current liabilities"	$	24.7	$	6.8